Coupling.



and other equivalent means may be used in place of the tightening-devis and plate or gland for operating the'wedge-clamp. Such other modifications can also be made'las fall within the scope of the appended claims. What I claim as new, and desire to secure by Letters Patent isy 1. A lcoupling for a conduit, comprising a .chamber with' inwardly taperingwalls adapted to receive the end of the conduit and means togrip the conduit near its end and lforcethe end tightly against the walls of said chamber.

' 2. A coupling for a tubular conduit, comprising a conl Vicl chamber adapted to receive the end of the conduit, a

cone wedge-clamp adapted to nt around the conduit and,

' when.forced into the mouth of said chamber, to grip the conduit andwedge its end against the tapering walls of Said chamber, and means vfor operating said wedge-cone.-

ii. A coupling fora tubular conduit, comprisingacon ical chamber, a cone wedge, a condultthe end of which extends beyond the4 wedge, and means for forcing the ends of the wedge and conduit into the conical chamber and against .its wall.

4. A coupling for a tubular conduit, comprising a conical chamber ln the part to which lthe conduit is to be connected, a cone wedge, a conduit the end of which extends ,throughnd beyond the cone wedge, and means for forcing the e'nd of the cone wedgel into the mouth of said chamber f to grip the conduit and force its end against the' wall of said chamber.

5. A coupling .for a tubulnriconduit,comprisingfa conical chamber in'the part to which the conduit is to be con and 'coperate at one end with the mouth of said chamber' and at the other end w-itlr the sides of an orifice through a gland-plate, 4and a tightening cievis forforcing said glandplate towards said chamber to cause said wedge-cone to grip the conduit 'land wedge rits end between the tapering walls of said chamber.

6. In a steam thawing point, a head-section having in one side thereof a conical chamber adapted to provide a tapering wedge seat for the end of'a steam conduit and in communication with the longitudinal bore of the point-` section. a tubular conduit fol` supplying .steam thereto, a split double cone wedge'rclamp adaptedto tit around said conduit and coperating at one endwith the mouth of saldchambe'r and at the other end with the orifice in a ,gland-plate,4 and means for drawing .said gland-plata towards said headsection and thereby cause said wedgeclamp to securely grip said conduit and force its end to a tight seat between the tapering walls of said chamber.

7. In a steam thawing tool, a head-section having in,4

one side thereof aconical chamber communicating with the longitudinal bore of the point-section, a hose for supplying s'team to said tool, and means for first clamping said hose near its end and then forcing the end to a tight seat between tire tapering walls of said conical chamber.

, In witness whereof, I have hereunto afxed my sgna- 

